Alright, let's work through 60805990 times 71648025 step by step
60805990 × 71648025 = 71648025 × (60805990)
+ 71648025 × 0 yielding 0
+ 71648025 × 90 yielding 6448322250
+ 71648025 × 900 which equals 64483222500
+ 71648025 × 5000 what gives us 358240125000
+ 71648025 × 00000 yielding 0
+ 71648025 × 800000 yielding 57318420000000
+ 71648025 × 0000000 resulting in 0
+ 71648025 × 60000000 what gives us 4298881500000000

= 4356629091669750
